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  <title>denormalize_tables (denormalize.rb)</title>
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  <pre><span class="ruby-comment cmt"># File denormalize.rb, line 2</span>
 <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">denormalize_tables</span>
        <span class="ruby-identifier">row_counter</span> = <span class="ruby-value">0</span> 
        <span class="ruby-identifier">root_tables</span> = <span class="ruby-identifier">get_root_tables</span>(<span class="ruby-value str">&quot;denorm_config.csv&quot;</span>)
        <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">root_tables</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">&lt;</span> <span class="ruby-value">2</span>
                <span class="ruby-identifier">puts</span> <span class="ruby-value str">&quot;Denormalization required atleast two tables&quot;</span>
        <span class="ruby-keyword kw">else</span>
                <span class="ruby-identifier">denormalized_table_name</span> = <span class="ruby-identifier">root_tables</span>.<span class="ruby-identifier">join</span>(<span class="ruby-value str">'_'</span>)
                <span class="ruby-identifier">new_connection</span> = <span class="ruby-identifier">create_new_connection</span>
                <span class="ruby-identifier">root_tables</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">table_name</span><span class="ruby-operator">|</span>
                        <span class="ruby-identifier">create_structure_csv_file</span>(<span class="ruby-identifier">table_name</span>,<span class="ruby-identifier">new_connection</span>)
                        <span class="ruby-constant">FasterCSV</span>.<span class="ruby-identifier">foreach</span>(<span class="ruby-node">&quot;#{table_name}_structure.csv&quot;</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">row</span><span class="ruby-operator">|</span>
                                <span class="ruby-identifier">row_counter</span> = <span class="ruby-identifier">row_counter</span> <span class="ruby-operator">+</span> <span class="ruby-value">1</span>
                                <span class="ruby-keyword kw">for</span> <span class="ruby-identifier">field_counter</span> <span class="ruby-keyword kw">in</span> <span class="ruby-value">1</span><span class="ruby-operator">..</span><span class="ruby-identifier">row</span>.<span class="ruby-identifier">length</span><span class="ruby-operator">-</span><span class="ruby-value">1</span>
                                        <span class="ruby-identifier">column_struc</span> = <span class="ruby-identifier">get_the_col_specs</span>(<span class="ruby-identifier">row</span>[<span class="ruby-identifier">field_counter</span>],<span class="ruby-identifier">table_name</span>)
                                        <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">row_counter</span> <span class="ruby-operator">==</span> <span class="ruby-value">1</span>
                                                <span class="ruby-identifier">new_connection</span>.<span class="ruby-identifier">query</span>(<span class="ruby-node">&quot;CREATE TABLE #{denormalized_table_name} (#{row[0]} #{row[1]})&quot;</span>)
                                        <span class="ruby-keyword kw">else</span>
                                                <span class="ruby-identifier">new_connection</span>.<span class="ruby-identifier">query</span>(<span class="ruby-node">&quot;ALTER TABLE #{denormalized_table_name} ADD `#{row[0]}` #{row[1]}&quot;</span>)
                                        <span class="ruby-keyword kw">end</span>        
                                <span class="ruby-keyword kw">end</span>
                        <span class="ruby-keyword kw">end</span>
                <span class="ruby-keyword kw">end</span>           
        <span class="ruby-keyword kw">end</span>    
 <span class="ruby-keyword kw">end</span></pre>
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